diff --git a/executables/ConcurrentInsertionBench.hs b/executables/ConcurrentInsertionBench.hs
--- a/executables/ConcurrentInsertionBench.hs
+++ b/executables/ConcurrentInsertionBench.hs
@@ -11,6 +11,7 @@
 import qualified Focus
 import qualified Data.Char as Char
 import qualified Data.Text as Text
+import qualified Data.Vector as Vector
 
 
 type UCMap k v = TVar (UC.HashMap k (TVar v))
@@ -108,7 +109,7 @@
 -------------------------
 
 main = do
-  allTransactions <- MWC.runWithCreate $ replicateM actionsNum transactionGenerator
+  allTransactions <- MWC.runWithSeed seed $ replicateM actionsNum transactionGenerator
   defaultMain $! flip map threadsNums $! \threadsNum ->
     let
       sliceSize = actionsNum `div` threadsNum
@@ -128,5 +129,6 @@
               ucSessionRunner threadTransactions
           ]
   where
+    seed = MWC.toSeed (Vector.fromList [1,2,3,4,5,6,7])
     actionsNum = 100000
     threadsNums = [1, 2, 4, 6, 8, 12, 16, 32, 40, 52, 64, 80, 128]
diff --git a/stm-containers.cabal b/stm-containers.cabal
--- a/stm-containers.cabal
+++ b/stm-containers.cabal
@@ -1,16 +1,16 @@
 name:
   stm-containers
 version:
-  0.2.15
+  0.2.16
 synopsis:
   Containers for STM
 description:
-  This library is based on an STM-specialized implementation of a
+  This library is based on an STM-specialized implementation of
   Hash Array Mapped Trie.
   It provides efficient implementations of @Map@, @Set@
   and other data structures,
-  which are slightly slower than their counterparts from \"unordered-containers\",
-  but scale very well on concurrent access patterns.
+  which are marginally slower than their counterparts from \"unordered-containers\",
+  but scale well on concurrent access patterns.
   .
   For details on performance of the library see
   <http://nikita-volkov.github.io/stm-containers/ this blog post>.
@@ -69,7 +69,7 @@
     -- general:
     primitive >= 0.5 && < 0.7,
     base-prelude < 2,
-    base < 4.10
+    base < 5
   default-extensions:
     Arrows, BangPatterns, ConstraintKinds, DataKinds, DefaultSignatures, DeriveDataTypeable, DeriveFoldable, DeriveFunctor, DeriveGeneric, DeriveTraversable, EmptyDataDecls, FlexibleContexts, FlexibleInstances, FunctionalDependencies, GADTs, GeneralizedNewtypeDeriving, LambdaCase, LiberalTypeSynonyms, MagicHash, MultiParamTypeClasses, MultiWayIf, NoImplicitPrelude, NoMonomorphismRestriction, OverloadedStrings, PatternGuards, ParallelListComp, QuasiQuotes, RankNTypes, RecordWildCards, ScopedTypeVariables, StandaloneDeriving, TemplateHaskell, TupleSections, TypeFamilies, TypeOperators, UnboxedTuples
   default-language:
@@ -93,10 +93,10 @@
     QuickCheck >= 2.6 && < 3,
     HTF == 0.13.*,
     -- data:
-    hashable < 1.3,
+    hashable,
     -- control:
     list-t,
-    focus >= 0.1.2 && < 0.2,
+    focus,
     transformers,
     -- debugging:
     loch-th == 0.2.*,
@@ -131,7 +131,7 @@
     placeholders == 0.1.*,
     -- general:
     list-t,
-    focus >= 0.1.2 && < 0.2,
+    focus,
     unordered-containers == 0.2.*,
     free >= 4.6 && < 5,
     mtl == 2.*,
@@ -165,8 +165,8 @@
     -- data:
     text < 1.3,
     list-t,
-    focus >= 0.1.2 && < 0.2,
-    hashable < 1.3,
+    focus,
+    hashable,
     hashtables >= 1.1 && < 1.3,
     containers == 0.5.*,
     unordered-containers == 0.2.*,
@@ -197,18 +197,19 @@
     mwc-random == 0.13.*,
     mwc-random-monad == 0.7.*,
     -- data:
-    text < 1.3,
+    vector,
+    text < 2,
     list-t,
-    focus >= 0.1.2 && < 0.2,
+    focus,
     unordered-containers == 0.2.*,
-    hashable < 1.3,
+    hashable,
     stm-containers,
     -- debugging:
     loch-th == 0.2.*,
     placeholders == 0.1.*,
     -- general:
     free >= 4.5 && < 5,
-    async >= 2.0 && < 2.2,
+    async >= 2.0 && < 3,
     base-prelude,
     base
 
@@ -232,11 +233,11 @@
     mwc-random-monad == 0.7.*,
     -- data:
     containers >= 0.5.2 && < 0.6,
-    text < 1.3,
+    text < 2,
     list-t,
-    focus >= 0.1.2 && < 0.2,
+    focus,
     unordered-containers == 0.2.*,
-    hashable < 1.3,
+    hashable,
     stm-containers,
     -- debugging:
     loch-th == 0.2.*,
@@ -244,7 +245,7 @@
     -- general:
     mtl == 2.*,
     free >= 4.5 && < 5,
-    async >= 2.0 && < 2.2,
+    async >= 2.0 && < 3,
     mtl-prelude < 3,
     base-prelude,
     base